A Collective Outbreak of Bovine Tuberculosis in Beef Cattle in Kumamoto Prefecture in 1979

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  • 1979年熊本県内に集団発生した褐毛和種の牛結核病
  • 1979ネン クマモト ケンナイ ニ シュウダン ハッセイシタ カツモウワシュ

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Abstract

Bovine tuberculosis broke out collectively among beef cattle in Kumamoto Prefecture in 1979 and 1980, and 74 cattle were condemned. Bacteriological and pathological examinations were carried out in 6 cattle positive for tuberculin test. Autopsy revealed lesions in lung, liver, stomach, and lymph node in all the cattle. Histologically, tuberculous nodules were formed in most lesions. Their centers showed caseation and were surrounded by proliferating epithelioid cells, including scattered Langhans' cells and a few acid-fast cells. These cells were identified as Mycobacterium bovis on the basis of their biological properties and infectivity to guinea pigs.

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